Microwave study of the rotational spectrum of oxygen molecule in the range up to 1.12 THz |
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Authors: | GYu Golubiatnikov |
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Institution: | Russian Academy of Sciences, Applied Physics Institute, 46 Uljanova Street, GSP-120, Nizhnii 603600, Russia |
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Abstract: | Microwave study of the rotational transitions of oxygen molecule in its electronic and vibrational ground states is reported. Eight transitions belonging to N=3-1, N=5-3, and N=7-5 groups were investigated. Central line frequencies and pressure broadening parameters for O2 and N2 as perturbers were determined. The highest frequency of measured transition (N,J)=(7,6)-(5,6) has been 1.12 THz. Spectrometer with backward wave oscillator (BWO) and acoustic detector (RAD) was used. Since this experiment has more than doubled the number of previously measured rotational lines of oxygen molecule and better accuracy was achieved, the fitting of new set of rotational transition frequencies has been performed and new more accurate molecular constants for in , v=0 state have been obtained. |
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Keywords: | Oxygen Submillimeter Frequency Broadening |
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